Calcium iodide
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Overview
Calcium iodide (CaI2) is an ionic compound of calcium and iodine. It is highly soluble in water and it is deliquescent. It is a salt that is solid at room temperature, and it behaves as a typical ionic halide. Because of its hygroscopic nature, it must be kept in tightly-sealed containers. It is similar to calcium chloride in many respects[1]. It is used in photography[2].
Reactions
Henri Moissan first isolated pure calcium metal by reducing calcium iodide with pure sodium metal[3]:
Calcium iodide can be formed by reacting calcium carbonate with hydroiodic acid[4]:
Calcium iodide slowly reacts with oxygen and carbon dioxide in the air, giving free iodine[5].
References
- ↑
Mendeleyev, Dmitry Ivanovich; Kamensky, George (1902), The Principles of Chemistry, New York: P. F. Collier, p. 604, retrieved 2007-12-08 Text " author2-link
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- ↑
Mellor, Joseph William (1912), Modern Inorganic Chemistry, New York: Longmans, Green, and Co, p. 334, retrieved 2007-12-08 Text " author2-link
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Gooch, Frank Austin; Walker, Claude Frederic (1905), Outlines of Inorganic Chemistry, New York: Macmillan, p. 340, retrieved 2007-12-08 Text " author2-link
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|accessdate=(help) - ↑ Jones, Harry Clary (1906), Principles of Inorganic Chemistry, New York: Macmillan, p. 365, retrieved 2007-12-08 Text " author2-link
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